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Physics

Physics
The unit of noise pollution (level) is :

Decibel
None of these
Decimal
Ppm

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Physics
If velocity is constant then acceleration is what?

Constant
Infinite
Increasing
Zero

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Physics
Ultrasound devices operate with minimum frequency from

20kHz
35 kHz
45 kHz
60 kHz

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Physics
A rear-view mirror for driving is

Plain
Concave
Inverted
Convex

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Physics
Which of the following parts of the sunlight makes the solar cooker hot ?

Infra red
Cosmic rays
Ultra violet
Red light

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Physics
Q = mcdT refers to

Heat Transfer formula
Heat of Vaporization
Enthalpy formula
Specific Heat formula

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MORE MCQ ON Physics

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